v9: add imx6q specific ahci sata support - Let ahci_imx depend on the MFD_SYSCON, to fix the build error reported by Randy. " on i386. # CONFIG_MFD_SYSCON is not set when ahci_imx.c is built as a loadable module: ERROR: "syscon_regmap_lookup_by_compatible" [drivers/ata/ahci_imx.ko] undefined! " - v8: http://www.spinics.net/lists/linux-ide/msg45798.html - Regarding to Tejun's comments, rename the sata_imx driver to be ahci_imx - Add Shawn's ack and review signoff. - v7: http://www.spinics.net/lists/linux-ide/msg45738.html Thanks to Sergei Shtylyow and Shawn. - According to ePAPR [1] section 2.2.2, re-name the node from 'ahci' to 'sata' - Move the initialization of the ahb clock of the private data to the probe function. - Remove the platform_set_drvdata(..., NULL), and devm_clk_put (..., ...). - v6: http://www.spinics.net/lists/linux-ide/msg45719.html Thanks for Shawn's comments. - Speicify the ahb clock in the sata related dts changes. - Move the initialization of the sata PHY clock of the private data to the probe function. - Remove the empty device release function. - In order to be more readable, rename the imx_dev/imx_ahci_pdev to be ahci_dev/ahci_pdev, and do some other changes, such as typo error, more readable name of the variable. - v5: http://www.spinics.net/lists/linux-ide/msg45712.html - Fix the wrong referrence usage of the private data. - Use the private data to contain the poninter of the PHY signals adjustment window(gpr) - Tested on imx6q sd board. - v4: http://www.spinics.net/lists/linux-ide/msg45699.html Thanks for the review comments provided by Sascha, and Alexander. - Use the private data and keep a pointer to the PHY clock. - Don't use the global platform device variable, because that it would make the driver broken for mutiple instances. - Don't do the "writel" with assignment. - Other minor changes, such as print the error code when printing error message, use a u32 type to store readl results, and so on. v3: http://www.spinics.net/lists/linux-ide/msg45688.html - Keep arch/arm and ahci_platform driver clean. - Add the sata_imx standalone driver contained all the specific setup - Add the release function, support the loadable module driver. - Tested on imx6q sd board. v2: http://www.spinics.net/lists/linux-ide/msg45666.html - Setup standalone imx ahci sata driver, because of the misalignments of the bits definition of the HBA register. - Replace the node by the label in the board dts. - v1: http://www.spinics.net/lists/linux-ide/msg45581.html - add imx6q specific ahci sata support to arch/arm/mach-imx/mach-imx6q.c These patches is based on imx/dt branch of "http://git.linaro.org/git-ro/people/shawnguo/linux-2.6.git"; [v9 1/3] ARM: dtsi: enable ahci sata on imx6q platforms [v9 2/3] ARM: imx6q: update the sata bits definitions of gpr13 [v9 3/3] ahci_imx: add ahci sata support on imx platforms arch/arm/boot/dts/imx6q-sabreauto.dts | 4 + arch/arm/boot/dts/imx6q-sabrelite.dts | 4 + arch/arm/boot/dts/imx6q-sabresd.dts | 4 + arch/arm/boot/dts/imx6q.dtsi | 9 + drivers/ata/Kconfig | 9 + drivers/ata/Makefile | 1 + drivers/ata/ahci_imx.c | 236 +++++++++++++++++++++++++++ include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 121 ++++++++++---- 8 files changed, 351 insertions(+), 37 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
